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Liping Yang¹, Jiudong Xu¹, Yu Song²

¹Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.

Journal of hazardous materials

|March 1, 2026

概括

卡斯特地区的植被恢复通过增加土壤有机碳 (SOC),特别是矿物相关有机碳 (MAOC) 来增强土壤的封存. 这个过程有效地限制了的迁移,为生态恢复策略提供了重要的见解.

科学领域:

环境科学环境科学
地质化学地质化学
土壤科学土壤科学

背景情况:

植物在通过土壤有机碳 (SOC) 动态调节土壤 (Hg) 封存方面发挥着至关重要的作用.
在生态脆弱的地地区,SOC对Hg捕获的机制尚不清楚.
由于其特殊的地质和生态特征,岩环境对土壤管理提出了独特的挑战.

研究的目的:

为了调查Hg分布和物种化在不同土地用途 (耕地,草地,森林) 在一个岩石流域.
量化各种土壤有机碳池 (MAOC,POC,Fe-OC) 对捕获的影响.
阐明植被继承在调节碳合机制的作用.

主要方法:

在一个石流域的耕地,草地和林地土壤样本的实地采样.
测量总 (THg),溶解 (DHg),各种SOC分数 (MAOC,POC,Fe-OC) 和稳定的同位素.
使用部分最小平方结构方程建模 (PLS-SEM) 和多变量非线性回归分析 (MNRA) 的统计分析.

主要成果:

林地土壤呈现出最高的积,这与矿物相关有机碳 (MAOC) 含量有关.
与铁相关的有机碳 (Fe-OC) 对保持的贡献随着植被继承而显著增加.
稳定的SOC分数促进了Hg封存,而不稳定的SOC可能促进了Hg迁移.

结论:

卡斯特地区的植被恢复通过促进SOC形成,特别是MAOC,有效地封存土壤中的.
矿物质吸附在岩系统内结起关键作用,由植被覆盖增强.
结果支持植被恢复作为一种可行的策略,用于控制和生态补救在地地区.

关键词:

卡斯特河 (Karst) 是一个卡斯特河.水银积累的情况.在SOC中,SOC是SOC.土壤特征土地特征土壤特征植物覆盖面覆盖着植物.

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